Bulb



FIG. 1 is a top perspective view of a bulb showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a top perspective view of a bulb showing a second embodiment of our new design;

FIG. 10 is a bottom perspective view thereof;

FIG. 11 is a front elevational view thereof;

FIG. 12 is a rear elevational view thereof;

FIG. 13 is a left side view thereof;

FIG. 14 is a right side view thereof;

FIG. 15 is a top plan view thereof; and

FIG. 16 is a bottom plan view thereof;

FIG. 17 is a top perspective view of a bulb showing a third embodiment of our new design;

FIG. 18 is a bottom perspective view thereof;

FIG. 19 is a front elevational view thereof;

FIG. 20 is a rear elevational view thereof;

FIG. 21 is a left side view thereof;

FIG. 22 is a right side view thereof;

FIG. 23 is a top plan view thereof; and

FIG. 24 is a bottom plan view thereof;

FIG. 25 is a top perspective view of a bulb showing a fourth embodiment of our new design;

FIG. 26 is a bottom perspective view thereof;

FIG. 27 is a front elevational view thereof;

FIG. 28 is a rear elevational view thereof;

FIG. 29 is a left side view thereof;

FIG. 30 is a right side view thereof;

FIG. 31 is a top plan view thereof; and

FIG. 32 is a bottom plan view thereof;

FIG. 33 is a top perspective view of a bulb showing a fifth embodiment of our new design;

FIG. 34 is a bottom perspective view thereof;

FIG. 35 is a front elevational view thereof;

FIG. 36 is a rear elevational view thereof;

FIG. 37 is a left side view thereof;

FIG. 38 is a right side view thereof;

FIG. 39 is a top plan view thereof; and,

FIG. 40 is a bottom plan view thereof. 

CLAIM The ornamental design for a bulb, as shown and described. 